Solve this Time and Work question: Twenty workers can complete a drainage project in 36 days. After working for 12 days, 5 workers leave the site. How many additional days will the remaining workers take to finish the project?

The verified answer to “Solve this Time and Work question: Twenty workers can complete a drainage project in 36 days. After working for 12 days, 5 workers leave the site. The question-specific working supplied with the item states: After 5 workers leave, 15 remain; required time = 480 ÷ 15 = 32 days.otal work = 20×36 = 720 worker-days. New duration = 24 days, so required workers = 720/24 = 30. Additional workers = 30-20 = 10. This working identifies the relevant work-rate equation and connects the given information to the required result. After applying the verified rule, the required value or position is 32 days. The alternatives 34 days, 36 days and 30 days fail because each breaks at least one stated condition, transition, direction or arithmetic step. A plausible-looking option is not sufficient unless it reproduces the complete work-rate equation. This full replay leads only to 32 days, so option A is uniquely correct. The method is transparent, question-specific and suitable for SSC, Railway, Banking, Defence, State and other competitive examinations.